EP 0109596 B1 19870812 - RECIPROCATING PISTONS INTERNAL COMBUSTION ENGINE
Title (en)
RECIPROCATING PISTONS INTERNAL COMBUSTION ENGINE
Publication
Application
Priority
DE 3242498 A 19821118
Abstract (en)
[origin: EP0109596A2] 1. Reciprocating piston internal combustion engine, the cylinder linings (28) of which have a cylinder bore diameter of 400 mm and more and whose pistons are articulated on a crankshaft (5) by means of connecting rods, the crankshaft being mounted in a machine frame (1) cast in one piece, and carried by bearing caps (6) fixed from below, wherein the bearing caps (6) have through-holes (20) for passing tie rods (21) through to secure them to the machine frame (1) and wherein the cylinder linings (28) are fixed on the machine frame (1) by tie rods (30) carrying nuts (36) on threaded shanks (34) at least on their upper ends and penetrating, by means of through-holes (31), cylinder heads (29) fixed on top, characterised by the combination of the following features : a) the one-piece machine frame (1) is cast from simple grey cast iron (GG25 or GG20) b) for securing the bearing caps (6) the one-piece machine frame (1) has through-holes (19) in alignment with their through-holes (20) for passing through correspondingly long tie rods (21) which completely penetrate the through-holes (19, 20) not having any thread, and at each end respectively carry a nut (24, 25) on a threaded shank (22, 23), one of which nuts (24) is supported on a corresponding contact surface (26) on the upper side of the machine frame (1), and the other of which (25) is supported on the lower side (27) of a bearing cap (6), c) the one-piece machine frame (1) has an intermediate partition (3) approximately on a level with its neutral bending zone, on which the tie rods (30) leading to a cylinder head (29) are fixed with their lower ends, d) all the tie rods (21; 30) extend beyond the nuts (24; 36) at least with their threaded shanks (22; 34) arranged at the upper ends, and with this projecting part form a supporting upstand for fixing and retaining a tie rod clamping- or nut-loosening device.
IPC 1-7
IPC 8 full level
F02F 1/00 (2006.01); F02F 1/24 (2006.01); F02F 7/00 (2006.01); F16C 9/02 (2006.01); F16C 9/03 (2006.01); F16M 1/02 (2006.01); F16M 1/021 (2006.01); F16M 1/025 (2006.01); F02F 1/10 (2006.01)
CPC (source: EP)
F02F 7/00 (2013.01); F16C 9/02 (2013.01); F16C 9/03 (2013.01); F02F 1/102 (2013.01); F02F 2007/0063 (2013.01)
Citation (examination)
Prospekt Fa. Ruston Paxmann (Publication No. 231) Nov. 1970
Designated contracting state (EPC)
CH DE FR GB LI NL
DOCDB simple family (publication)
EP 0109596 A2 19840530; EP 0109596 A3 19860102; EP 0109596 B1 19870812; DE 3242498 A1 19840524; DE 3242498 C2 19850711; DE 3373006 D1 19870917; ES 527214 A0 19840801; ES 8406637 A1 19840801; JP H0433979 B2 19920604; JP S59103946 A 19840615
DOCDB simple family (application)
EP 83111059 A 19831105; DE 3242498 A 19821118; DE 3373006 T 19831105; ES 527214 A 19831111; JP 21512783 A 19831117